18053684 has 24 divisors (see below), whose sum is σ = 34761216. Its totient is φ = 8203800.

The previous prime is 18053683. The next prime is 18053699. The reversal of 18053684 is 48635081.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18053681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3629 + ... + 7019.

It is an arithmetic number, because the mean of its divisors is an integer number (1448384).

Almost surely, 2^18053684 is an apocalyptic number.

It is an amenable number.

18053684 is a deficient number, since it is larger than the sum of its proper divisors (16707532).

18053684 is a wasteful number, since it uses less digits than its factorization.

18053684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3428 (or 3404 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 18053684 is about 4248.9626969415. The cubic root of 18053684 is about 262.3344213537.

The spelling of 18053684 in words is "eighteen million, fifty-three thousand, six hundred eighty-four".